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moby--moby/pkg/discovery/README.md

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---
page_title: Docker discovery
page_description: discovery
page_keywords: docker, clustering, discovery
---
# Discovery
Docker comes with multiple Discovery backends.
## Backends
### Using etcd
Point your Docker Engine instances to a common etcd instance. You can specify
the address Docker uses to advertise the node using the `--cluster-advertise`
flag.
```bash
$ dockerd -H=<node_ip:2376> --cluster-advertise=<node_ip:2376> --cluster-store etcd://<etcd_ip1>,<etcd_ip2>/<path>
```
### Using consul
Point your Docker Engine instances to a common Consul instance. You can specify
the address Docker uses to advertise the node using the `--cluster-advertise`
flag.
```bash
$ dockerd -H=<node_ip:2376> --cluster-advertise=<node_ip:2376> --cluster-store consul://<consul_ip>/<path>
```
### Using zookeeper
Point your Docker Engine instances to a common Zookeeper instance. You can specify
the address Docker uses to advertise the node using the `--cluster-advertise`
flag.
```bash
$ dockerd -H=<node_ip:2376> --cluster-advertise=<node_ip:2376> --cluster-store zk://<zk_addr1>,<zk_addr2>/<path>
```